Question

I am developing an app that contains a UIWebView. I want the user to be able to click on a UIButton (or UIButtonBarItem) that will trigger a div element within the UIWebView to toggle on and off (using jQuery – $('shade').toggle();). Is this possible?

Names of elements..
UIWebView = forumIndex
UIButtonBarItem = forumMenuTrigger
The id of the div inside of the UIWebView = #shade

Answer 1

In the handler for UIButton, you need to somehow grab the reference of the UIWebView. I assume you can do that on your own.

Let forumIndex be the name of the UIWebView. Use - (NSString *)stringByEvaluatingJavaScriptFromString:(NSString *)script method to inject JavaScript into the UIWebView.

[forumIndex stringByEvaluatingJavaScriptFromString: @"$('#shade').toggle();"];